From: Seth Jennings <sjenning@redhat.com>
To: Greg KH <gregkh@linuxfoundation.org>
Cc: Josh Poimboeuf <jpoimboe@redhat.com>,
Jiri Kosina <jkosina@suse.cz>, Vojtech Pavlik <vojtech@suse.cz>,
Steven Rostedt <rostedt@goodmis.org>,
Petr Mladek <pmladek@suse.cz>, Miroslav Benes <mbenes@suse.cz>,
Christoph Hellwig <hch@infradead.org>,
Andy Lutomirski <luto@amacapital.net>,
Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com>,
live-patching@vger.kernel.org, x86@kernel.org, kpatch@redhat.com,
linux-kernel@vger.kernel.org
Subject: Re: [PATCHv2 2/3] kernel: add support for live patching
Date: Mon, 17 Nov 2014 13:13:07 -0600 [thread overview]
Message-ID: <20141117191307.GA21392@cerebellum.variantweb.net> (raw)
In-Reply-To: <20141117184558.GA13995@kroah.com>
On Mon, Nov 17, 2014 at 10:45:58AM -0800, Greg KH wrote:
> On Sun, Nov 16, 2014 at 07:29:23PM -0600, Seth Jennings wrote:
> > +#ifdef CONFIG_X86_32
> > +int lpc_write_module_reloc(struct module *mod, unsigned long type,
> > + unsigned long loc, unsigned long value)
> > +{
> > + pr_err("Live patching not supported on 32-bit x86\n");
> > + return -ENOSYS;
> > +}
>
> Why not just prevent the code from being built on x86_32 instead of
> putting this in the file?
Yep. Masami saw this too and recommended a ARCH_HAVE_LIVE_PATCHING flag
set by the archs that support it. I'll make the change.
Thanks for the review!
Seth
>
> thanks,
>
> greg k-h
next prev parent reply other threads:[~2014-11-17 19:13 UTC|newest]
Thread overview: 26+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-11-17 1:29 [PATCHv2 0/3] Kernel Live Patching Seth Jennings
2014-11-17 1:29 ` [PATCHv2 1/3] kernel: add TAINT_LIVEPATCH Seth Jennings
2014-11-17 1:29 ` [PATCHv2 2/3] kernel: add support for live patching Seth Jennings
2014-11-17 18:45 ` Greg KH
2014-11-17 19:13 ` Seth Jennings [this message]
2014-11-18 14:11 ` Miroslav Benes
2014-11-18 14:26 ` Seth Jennings
2014-11-18 14:45 ` Miroslav Benes
2014-11-19 20:34 ` Seth Jennings
2014-11-20 13:22 ` Miroslav Benes
2014-11-19 15:27 ` Miroslav Benes
2014-11-19 16:05 ` Seth Jennings
2014-11-20 13:10 ` Miroslav Benes
2014-11-20 17:35 ` Josh Poimboeuf
2014-11-20 19:56 ` Seth Jennings
2014-11-21 14:41 ` Miroslav Benes
2014-11-21 14:38 ` Miroslav Benes
2014-11-20 15:19 ` Josh Poimboeuf
2014-11-20 16:48 ` Seth Jennings
2014-11-17 1:29 ` [PATCHv2 3/3] kernel: add sysfs documentation " Seth Jennings
2014-11-17 18:50 ` Greg KH
2014-11-17 5:33 ` [PATCHv2 0/3] Kernel Live Patching Masami Hiramatsu
2014-11-17 13:16 ` Steven Rostedt
2014-11-17 14:54 ` Seth Jennings
2014-11-18 14:23 ` Jiri Slaby
2014-11-18 14:42 ` Seth Jennings
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